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a 70g piece of ice at 0c is added to a sample of water at 6 c, all of the ice melts and the temp of the water decreases to 0 c, how many grams of water were in the sample?
A 88.0-L sample of dry air is cooled from 135.9°C to 45.4°C while the pressure is maintained at 2.85 atm. What is the final volume in L. (Do not type the units.) the answer is 68.5 but using the charles law doesnt work. can someone explain it to m..
Simplest and most informative way to characterize a carboxylic acid is to determine its neutralization equivalent. The number of carboxyl group in the molecule of the following compound is 1.
How many PopTarts® are needed to convert 1,000.0 g of water at 20.0 oC to steam at 100.0 oC? One PopTart is equal to 800,000 J of energy
A solution of acetic acid, HC2H3O2, on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.39, what was the original concentration of the acetic acid
Explain your reasoning for each by writing a balanced net ionic equation to describe its behavior in water.
During a structure fire, the pump runs for 30 minutes. How many pounds of water are used to extinguish the fire? The density of water is 1.0 grams per milliliter.
Provides as many reasonable ways as possible of synthesizing 2-choloro-3-methylbutane as the major substrate product starting with substrates that contain 3 or more carbon atoms
An analysis of fatty acids is desired. These fatty acids have boiling points in excess of 275O C. The sample is extracted with methanol to obtain a solution that only contains the fatty acids.
What is the percentage by mass of CH4 in the mixture. The standard enthalpies of combustion for CH4 and C2H6 are -890.3 kJ mol-1 and -1569.7 kJ mol-1, respectively.
The mercury level in the open end of the manometer is 22 mm below that in the side connected to the argon. What is the pressure of argon, in mmHg
Draw the structure of the product(s) of the reaction between (S)-3-methylhexan-2-one and methylmagnesium bromide, followed by acidification. Use wedge and dash bonds to indicate stereochemistry
The pH in the stomach of a certain animal is 3.8. This means that the hydrogen ion concentration in the stomach
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